Steam-boiler.



J. G. BBOMAN.

STEAM BOILER. APPLICATION FILED FEB. 14. 1914. I

Patented Dec. 21, 1915.

SHEE]' I.

'4 SHEETS Bro??? J. G. BROMAN.

STEAM BOILER. APPLICATION FILED FEB-14,1914.

Patented Dec. 21, 1915.

4 SHEETSSHEET 2.

-1= GQBROMAN.

STEAM BOILER.

. APP L1CAT ION man FEB.14, 1914. 1,165.964. Patented Dec. 21, 1915.

v- 4 SHEETS-SHEET 3.

f A 42 Z1g 4 WFESEEE I EVEQIEIR I hf; roman J. 6. BROMAN.

' STEAM BOILER." APPLICATION FIL'ED FEB. 14, 1914.

Patented Dec. :21, 1915.

4 SHEETS-SHEE,T 4.

W Qty E EIEEE citizen of the United States,

of the city of Chicago, in the co'untyof Cook following a full, clear,

1 merals of reference marked thereon, 4 form a part of I and priminghave In the older types of engagement of the steam'from ably large steamspace,

anemone.

-.struct,a. boiler wherein of diflerent temperatures,

\ oriuon.

' JOHN G. BROMAN, OF CHICAGO, iLLINOIS.

smart-roman.

To all whom it may concern Be it known that I, JOHN G. BROMAN, a

and a resident and State of Illinois, have invented certain new anduseful Improvements in Steam- Boilers; and I do hereb'ydeclare that theand exact description of the same, reference being had to theaccompanying drawings, and

which this specification.

Experiment of a boiler is directly dependent upon the amount or rate ofcirculation of the water therethrough. In the older types of boilers thewater was permitted to remain practis cally quiescent during heating,but, 1n the modern type, great care is exercised in the construction toinsure a rapid circulation ot'the water, the production of athermosiphon serving to promote the circulation. However, in smallboilers of high horse powerv where the-water is caused to circulaterapidly, the ebullition of steam is more or .less violent, and, owing tothe movement of the water throughout the boiler, foamingformed seriousdifiiculties.

boiler where the water remains at rest'while being heated, the disthewater is not generally attended by any violent disturbance of thewaterand with a reasonpractically .dry steam is easily obtained. 5 Thisinvention relates to aboiler equipped with baffle sui facesso disposedas to form compartments effecting a partial-separation of the water ofdifferent temperatures to preserve as near-Fae possible a heatiilg-cy e.Furthermore,

/ the steam obtained. is free from entrained moisture, and the water ismade to circulate rapidly through theboiler.

Mechanism is'also provided for collecting impurities from the-surface ofthe water,

the rapid movement of the waterfaoilitating the operation.

it is an object of this invention to conthe steam drum is partitionedto,efiect separation of the water and further providing achamber for thedisengagement of the steam, the steam then passing into the main steamspace in the steam drum, and in its passage being freed from entrained.

. water.

' Specification of Letters Patent.

to the nuhas shown that the 'eliiciency mitted to pass into otherportions of ticles of moisture.

' the mechanism may Patented Dec. 21, 1915.

Application filed February 14, 1914. Serial No, 818,78t.

It is also an object of this invention to construct alhoiler in which arapid circulation of thewater takes place,

ent temperatures thereof, and in which the rapi-d-ebullition of steam isconfined to water contained in a partitioned space communicating withthe main steam space of the boiler.

It is also an object of this invention to construct a boiler whereinmeans are pr0-- due to the difier- I vided for deflecting-thecirculating water in a manner to prevent undue disturbance thereof andwhereby, owing to the movement of the Water impurities floating on thesurface may be collected or skimmed off at one point and blown out ofthe boiler from time to time.

It is also an important object of this invention to construct a boilerin which the portion of the water, from which the great est amount ofthe steam is evolved, is conbut is perthe boiler from time to timewithout violent fined in one part of the boiler,

disturbance, so that practically dry steam may be obtained and foamingis prevented. It is also an object of this invention to provide a'boilerequipped with baffle plates adapted to confineihat portion of the waterfrom which the steam is being evolved within a certain part of theboiler, and with other baffle plates to direct-the evolved steamIti'salso an object of this invention to I apply the principle involvedin my device with very slight modification to either vertical water tubeboilers or to the familiar B. and W." type, having inclined tubes.

Itis also an important object of my invention to construct-the mechanismwhich controls thedirect'on of flow of the-water and steam, of anadjustable nature whereby be changedto operate properly for differentwater levels-or for the evolved steam into the main steam space,

thereby freeing the steam from entrained particles of moisture; andwithother adjustable deflecting means acting to direct the flow of the waterfrom the steam drum'of the boiler obviating disturbance of the water,

and at the same time allowing the surface water to move therepastcarrying the floating impurities.

Itis finally an object of this invention'to construct a boiler whereinthe various portions of the circulating water are temporarily maintainedin different parts of the boiler, but in communication withone another,so that turbulence 's avoided and circulation of the water through 'theboiler augmented.

- The invention (1n a preferred form) is illustrated in the drawings andhereinafter more fully described.

In the drawings: Figure l is aside elevation. partly broken away andpartly in section, illustrating a B. and iv type of boiler embodying theprinciples of my invention.

Fig. 2 is an enlarged detail sectional view taken through the forwardend of the steam drum. Fig. 3 is a section on line 3-3 of Fig. 2. -Fig.4-. is a centrallongitudinalvertical section with parts in elevation ofa vertical water tube boiler embodying the principles of my invention.Fig. 5 is a section on line 55 of Fig. 4. Fig. 6 is a verticallongitudinal section through the rear of the steam drunL Fig. 7 isa'vertical section on line 6-6 of Fig. 6.

As shown in the drawings, referring to Fig. 1, the boiler setting isdenoted by the preference numeral 1, and is provided with a 4 fire door2, an ash door 3, and a grate 4. A

flue passage 5, is provided in the rear wall of the setting forconnection to the stack, and, a slight distance above the floor level, asoot door 6 is also mounted in said rear wall. Supported in the settingis a steam drum 7, and mounted below the same in inclined position are'aplurality of water tubes 8, connected at their lower ends in a rearheader 9, and at their upper ends in a front header 10, each of saidheaders comm'unicatingin the steam drum 7. A bridge 7 wall 11, extendstransversely of the setting at the rear of the grate 4, and built oversaid bridge wall and supporting said water tubes is a bafiie Wall 12.Another wall 13, arches transversely across thesetting from the sidewalls thereof and, together'with a wall 1-1, through which the tubesextend, affords another bafile for the products of combustion. Anopening is formed in the steam drum at the point i'ndicated by thereferencenumeral 15, to admit attachment of 'asafety valve thereto, anda steam nozzle 16 is also secured in said drum, whereby a. pipe lead tothe main header of a battery of boilers may be connected. An angle iron17 is se- .cured circumferentially around the interior of the, top wallof the steam drum, and another curved baflle plate 21, is pivotallymounted upon a rod 22, which extends transverselv across said angle ironring at the end of said baflie plate 20. The outer end of the balileplate 21, is supported by means of the links23, and 24, respectively,which are each apertured at a plurality of points andadjustablyconnected by a connecting bolt 25,

to permit extension of the link connection. Said link 23, is pivotallyconnected to the baflie plate 21, and said link 24, is likewisepivotally connected to the-to p Wall of the steam "drum. -Another baffleplate 26, is fastened to the lower wall of the steam drum near the rearend thereof, and is curved to project over the point at which the rearheader communicates in said drum. Directly back of said baffle plate ablow-oil" connection 27, is connected in the bottom of the steam drum,so that impurities floating on the-surface of the water will pass overthe balilev plate and collect at the rear of the drum where they maysettle, and be blown 03 from time to time. In the constructionillustrated in Figsi 4 and 5, the principle of operation is exactly thesame. However, in this ea c an upright or vertical water tube boiler isshown. The boiler setting is denoted by the reference numeral 28, and isprovided, as usual, with a grate 29, and a flue duct or passage to thestack 30. Supported on the upperend of the setting is a steam drum 31,and atthe lower end a water drum 32, is mounted, said steam drum andwater drum'being connected by a plurality of vertical Water tubes:

33. A baflle Wall 34, extends from the water drum upwardly to a point ashort distance. below the steam drum, so that the products ofcombustion, as shown by the arrows, le aving the grate 29, pass upwardlyaround certain ofthe water tubes and downwardly around the othersthereof and out at the fiue duct 30. A partition 35, extendstransversely across the crown sheet 36, of the steam drum, and issecured to the sidewalls thereof, said partition inclining toward thefront of the steam drum, and provided with J tom-of the steam drum. Whena fire is upon a curledor turned edge 37, along its upper margin- Acurved baffle plate 38, is pivota'lly mounted on the front wall of thesteam drum, and held in position by means of links 39, and 40,respectively, adjustably connected to one another in the same manner asthe links 23, and 24, already referred to'in the prior construction.- Astationary outwardly curved baffle plate 41, is secured on the frontwall of the steam drum, and its upper the pivotal connection for theadjustable baffle 38. r v

The operation is as follows: Referring first to Figs. 1 to 3 inclusive,it is to be noted that the normal water level in the steam drum isslightly below the top of the curved portion 19, of the partition 18,and that furthermore the front header 10, projects upwardly a shortdistance through the botthe grate 4, the products of combustion first atthe lower ends i tion 18. From time to respectively,

sweep upwardly around the forward ends of the water tubes, thence aroundand downwardly between the baffle walls 12, and 4, and finally upwardlybehi' d the baffle walls 13, and 14, and out through the flue passage 5.

Owing to the inclination of. the water tubes, a thermosiphon is set upand the' 'water flows therethrough in the direction of the arrows. Ofcourse, the forward ends of the tubes being subjected to the greatestheat from the furnace, and the water flowing thereinto having previouslybeen heated of said tubes, a rapid ebullition of steam and flow of watertakes place through the end of the front-header projecting into thesteam drum. Owing to' the disengagement of the steam, the watercontained in the steam drum forwardly of the partition 18, is in a'constant state of disturbance,

nicated to the main quantity of water in the steam drum on the rear sideof the partitime, as the level of the wateron the forward side of thepartition rises, the 'water' spills over the curved upper edge thereof.and then flows rearwardly with the main quantity of water in the steamdrum downwardly into the rear header 9, and again upwardly through thewater tubes.

lating water steam drum, the steam contained in the edge extends to apoint slightly above but the disturbance-is not commuat the forward endofsteam space thereabove is maintained in an exceedingly dry state;

There is, of course, a constant circulation of the water in the steamdrum from the front to the rear thereof, andof course floatingimpurities are carried with the water. As the circulating water strikesthe baffle 26, it is directed downwardly into the rear holder 9, and,owing to the fact that the baffle 26, does not extend above the surfaceof the Water, the impurities by their own inertia are carried orskimitled ther'eoer and then settle in the compartmentfloe 'nd thebaffle, and are blown off from ,itim to time, as desired, through theblow off 27.

In the construction illustrated in Figs. 4,

and 5, the principle of operation is identical with that alreadydescribed. In. this vertical type of boiler the steam is evolved infront of the partition 35, and asit flows upwardly afterits'disengagement from the surface of the water, strikes the curveddeflector 38, which re-directs the steam downwardly again on the rearside of the parti-. tion 35, the change in direction of flow thereofserving to throw out the particles of entrained moisture, and the steamthen passes upwardly into the steam space above the deflector 38, in anexceedingly dry state. The deflector 38, also serves to prevent i vaterfoaming in the steam drum into the steam nozzle, which may beconnectedin at the point 42. v

I am aware that details of construction may be varied through a widerange, and

tated by the prior art.

'I claim as my invention:

1. .In a boiler of the class described a steam drum, a compartmenttherein for the water from which most of thesteam is evolved, apassagepermitting flow of steam and water from said compartment into the mainportion of the steam drum, means adaptedto deflect the steam duringsaidflow to free the same of entrained water, and a baffle plate adapted'todirect the water outwardly from'the drum,- insuring a constantcirculation of the water without turbulence.

2. In a boiler of the class described means temporarily confining thewater from which most of the steam is evolved, means permitting flow ofsaid confined water and evolved steam into a main portion of the boiler,and adjustable baffle plates disposed in the path of the steam todeflect gage entrained water therefrom.

3. In a device of the class describedthe combination with the heatingsurfaces and the steam drum of a boiler, of a partition the principleinvolved may be the same and disenadjusting said boiler,

deflector disposed over said partition to direct the evolved steamdmvnwardly to free the steam of entrained moisture, and means deflectorfor 'diiferent Water levels.

4. In a device of the class described the combination with the steamdrum of a boiler, of a partition therein adapted to confine the st 2amdrum While the steam is being evolved therefrom, said partitionpermitting an overflow of said Water into the main portion of the steamdrum When the level of the water in. said confined portion rises, andbaiile plates, certain ones disposed above the surface of the Water todirect the flow of steam into the main portion of the steam drum, andanother bai 1e plate to direct the flow of water from said steain drumsIn a device of the class described the combination with theheatingsurfaces and the steam drum of a boiler, of a baiiie platedisposed below the Water level in. said steam drum to direct thecirculating Water insaid drum toward the heating surfaces, anotherbaflle disposed transversely of the steam drum to prevent the turbulentfrom the heating surfaces from mingling with. the Water in the mainportion of the steam drum,. and a deflector disposed above the waterlevel in the steam drum to deflect the steam evolved from said turbulentWaterv to free said steam of entrained moisture.

6. In a device of the class described a boiler comprising a steam drum,a main steam space, a main Water space, means defleeting thecirculating" Water from" said Water space to the heating surfaces'of thea plate having a hooked upper edge located adjacent the titioned'spaceformed by said plate adapted to receive the water from the heatingsurfaces to permit evolution of steam therefrom Without traiuimitting,the turbulence to the Water in the main water space.

7. A boiler of the class described comprising a steam drum, a main steamspace, a

main Water space, means deflecting the circulating Water from said Waterspace'to the heating surfaces of the boiler, a partitioned space in saidsteam drum adapted to receive heated Water in one portion of said Waterflowing drum intake, and a'par-.

the Waterfrom the heating surfaces to permit evolution of steamtherefrom Without transmitting the turbulence to the Water in the mainWater space, and pivotally connect ed means for varying the direction offlow of water and steam into said main spaces.

' 8. In a device of the class described the combination With theheating" surfaces and the steam drum of a boiler, of a partition linkextension members attached to said adjustable baflle plate and to thetop wall of the steam drum to regulate the position of said adjustablebattle plate.

9. In a device of the class described the combination with a steam drumembracing an auxiliary chamber and a main'chainber, of a plurality ofbattle plates rigidly secured on the bottom of above the Water ing belowthe Water surface, and a plurality of adjustable baiiie plat above oneof said lower baiile plates extendine from said auxiliary chamber into.said main chamber adapted to control the direction of flow of evolvedsteam into, said main chamber.

10. In a device of the class described the combination with a steamdrum, of a plurality of battle plates rigidly secured to the bottom ofsaiddrum, a plurality of ba-fiie plates attach-ed at the top of saiddrum, a plurality of extension members connected between said upperbaflie plates and the top of the drum, a compartment/behind one of saidlower vlate impurities, and means connected With said compartment forblowing off the impurities.

In testimony whereof I have hereunto subscribed my name in the presenceof two subsaid drumone extendingsurtace, another termmat-c baflie'plates adapted to accumu:

